XL4016E1 CC CV Module Xl4016 Power Supply

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XL4016E1 CC CV module xl4016 power supply. Constant voltage constant current module based on the XL4016 constant current constant voltage power supply module imitating the XL4015 buck module on the market, using finished voltage meter instead of easily damaged integrated voltage meter.

Schematic XL4016E1 CC CV module xl4016 power supply

Assembled from some parts, so the choice between SMD and PTH is very unreasonable.
The WXD potentiometer used is very bad, 5 out of 3 are broken, and the size is large, unfortunately, a smaller and more reliable multi-turn potentiometer cannot be found.
The voltmeter used is a 0.28-inch three-wire DC meter head, it is recommended to choose a decimal point movable, which can improve the display accuracy when the voltage and current are low.

Reference circuit:

Adding a power switch allows for complete power disconnection when needed.

12V output

Constant current output 1A:

Load-bearing circuit breaker

Bottom side:

It can be found that the SW foot Snubber composed of R8 and C13 is not soldered, this is because the SW waveform is already perfect, without overshoot and undershoot; while the absorbing circuit composed of R4 and C11 has been replaced by TVS, readers can determine which circuits to install based on the actual input voltage and cable length. After installation, please adjust the potentiometer on the back side to make the voltage meter display consistent with standard instruments (such as multimeters).

BOM XL4016E1 CC CV module xl4016 power supply

Value	Parts	Description	Quantity
Resistors
R1	10mR	2W 10mΩ ±1% 2512 Current Sense Resistor (Shunt)	1
R2,R17	3.3k (332)	R0603 – SMD resistor	2
R3	5kΩ	Trimmer Resistors – SMD 5kOhm	1
R5	510R (511)	R0603 – SMD resistor	1
R6,R7	100R (501)	R0603 – SMD resistor	2
R9,R10,R13,R11,R16	10k (103)	R0603 – SMD resistor	5
R12	20k (203)	R0603 – SMD resistor	1
R14	18k (183)	R0603 – SMD resistor	1
R15	7.5k (752)	R0603 – SMD resistor	1
R8,R4	22R (22R)	R1206 – SMD resistor	2
R18	2k	R0603	1
Capacitors
C1,C2,C3,C4	1000uF/35	Electrolytic Capacitor low ESR	4
C5,C6,C10	0.1u	C1206 – SMD capacitor	3
C7,C8,C9,C12,C14,C15,C16,C17,C19,C20	0.1u	C0603 – SMD capacitor	10
C11,C13	1u	C1206 – SMD capacitor	2
C18	220u/25	Electrolytic Capacitor	1
C21	22n	C0603 – SMD capacitor	1
Semiconductors
D1	SMBJ33CA	33V SMB(DO-214AA) ESD and Surge Protection TVS	1
D2	MBR2045	45V 20A TO-220AB Schottky Diode	1
D3	1N4148	SOD-323 Switching Diode	1
CC1	LED-0805_P	20mA red 0805 LED	1
PWR	LED-0603_R	20mA red 0603 LED	1
OUT	LED-0603_G	20mA green 0603 LED	1
U6,U5	LM321	Single Channel SOT-23-5 Operational Amplifier	2
U4	L78M12	12V Positive 35V TO-252-2(DPAK) Low Drop Out (LDO) Regulator	1
U1	INA199A1DCKR	SOT-363(SC-70-6) Current Sense Amplifier	1
U2	TL431A	2.495V~36V 100mA Adjustable TO-92-3 Voltage Reference	1
U3	XL4016E1	Step-down type 1.25V~36V 8V~40V 8A TO-220-5 DC-DC Converter	1
Miscellaneous
V1	0.28 -inch three line voltage meter	0.28 -inch three line voltage meter	1
I<->V,EN	SS12D00G3	3P, 8.8×3.9mm Slide Switch	2
F1,F2	Heat sink	15.510.524 MM 6063-T5 Heat sink	2
L3	SLT092125T220MTB	22uH Magnetic ring inductor	1
VI,VO	KF7.62-4P	1x4P 7.62mm 24A Barrier Terminal Blocks	2
M1,M2,M3,M4	M3	M3 hole	4
CURR, VOLT	WXD3-12 10K	10kΩ Potentiometer	2

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Schematic Xl4016E1 Cc Cv Module Xl4016 Power Supply Pcb 3D — Pcb 3D

Source: https://oshwhub.com/jeremy_li/xl4016-heng-ya-heng-liu-mu-kuai